Container and closure therefor



Oct. '1, 1940. A. POTDEVIN ET AL QONTAINER AND CLOSURE THEREFOR FiledMarch 9, 1938 2 Sheets-Sheet; l

ATTORN EYS L 1 A. POTDEVIN ET AL 3 CONTAINER AND CLO SURE THEREFOR FiledMarch 9, 1938 2 Sheets-Sheet 2 INVENTORS ATTORN Patented Oct. 1, 1940UNITED STATES PATENT OFFICE Richmond, Yonkers,

N. Y., assignors to Potdevin Machine Company, Brooklyn, N. Y., acorporation of New York Application March 9,

6 Claims.

This invention relates to improvements in container closures and themethod of making the same.

More specifically, the present invention is directed to what is known inthe trade as metal tie strip for closing containers such as paper bagsand the like, wherein a metal strip enclosed in paper is permanentlyattached to one wall of a container-at or near the closing end thereof.This tie strip of the present invention is made up of three diiierentparts; namely, a metal strip, a covering for the metal strip, and an1attaching flap secured to the covered metal s r p.

The customary metal tie strips with attaching "flaps now used consist oftwo parts; a, narrow metal strip and a comparatively wide paper coveringstrip. The metal strip is enclosed in one edge of a covering strip; theother edge, projecting some distancefrom the covered metal part, is usedas an attaching flap; but in order to make a practical structure,sections of this projecting covering material must be cut away, thuswasting a considerable amount of material.

it is further pointed out that in the old method the whole coveringmaterial is the same as required for the stronger attaching part of themetal closure strip.

Objects of the present invention are the provision of a bag tie whereinthe three-part tie strip offers simplified manufacture, eliminatingdying out and saving of material. We do not desire to be limited to anon-metallic covering strip as there are some paper reinforced metallicmaterials that may be used as a covering strip.

Other objects oi? the present invention will be manifest from thefollowing description and the accompanying drawings, in which drawings:

Fig. 1 is a perspective View of a bag embodying our improved structure;Fig. 2 is a vertical sectional view of the same; Fig. 3 is a perspectiveview of another form of bag embodying our invention; and

Fig. 4 is a vertical sectional view of the same. Referring to thedrawings in detail: 2 designates a container made of paper or othersuitable 'material, the closure end of which is provided with ourimproved tie. It is to be understood that while we have illustrated asingle ply bag in the drawings, we do not wish to be limited to thisapplication of our invention as, obviously, the same can be applied tomulti-ply bags, envelopes, wrappers, etc. wherein it is required toclose one end.

1938, ScrialNo. 194,815 (01. 229-65) The bag 2 is of the type whereinthe rear wall extends beyond the end of the opposite wall of the bag toform a'projecting flap 4.

To the-face oi the back wall of the bag we adhesively secure anon-metallic attaching strip 5, which may be of paper or other suitablematerial. This attaching strip 6, it will be noted, extends beyond-theend of the flap 4, and inasmuch as it isno wider'than the bag wall, thenecessity of dying out is eliminated, thereby not only effecting asaving in both material and labor but adapting our construction tocontinuous-motion manufacture.

To the attaching strip 6 we adhesively secure or fasten another strip 8.This strip 8 is wider than the bag, in fact its width is equal to thelength of the metal strip Ill of the tie.

The attaching strip 5 and covering strip 8 are shown folded around themetal tie strip l0, as shown in Fig. 2, so that the front face of themetal tie strip is adhesively secured to the attaching strip 6 and itsrear face to the covering strip 8. As an alternative to thisconstruction the attaching strip 6 may not enclose the metal tie strip,but may be terminated at any point above the lower edge of the coveringstrip 8,

The attaching strip 6 is of a strong material, its primary functionbeing to provide a stron attachment of the tie to the bag. While thematerial of this strip is strong, a saving in material cost is efiectedby employing a strip no wider than the bag wall thus eliminatingdyingout and consequent waste, our construction possessing the furtheradvantage, already pointed out, of lending itself to continuousmotionmanui'acture. The material 8 may be any cheap grade of material in thatits function is merely to cover the strip Hi.

When the container is filled and it is desired to close the end of thebag the tie is folded or rolled over with the opposite end wall as manytimes as desired and the projecting endsell fold ed transversely of thefront wall of the bag.

Referring to the embodiment of the invention illustrated in Figs. 3 and4: 22 designates the bag. This bag has no projecting flap at its openend.

Secured to the rear wall of this bag is an attaching strip 26 similar tothe attaching strip 6 of Fig. 1 and to the outside of the attachingstrip 25 is secured a covering strip 28' similar to the covering strip 8of Fig. 1. The metallic tie strip of this tie is designated 20 and issimilar to the strip ill of Fig. '1. The strips 26 and 28 may be foldedaround the tie strip in a fashion similar to that described inconnection with Fig.1, or the attaching strip maybe terminated short ofthe upper edge of the tie strip instead of being folded about it. Theattaching strip 26 is no wider than the bag wall so that the sameadvantages are efi'ected as pointed out in connection with Figs. 1 and2.

It will be appreciated thatin both forms of our invention hereinillustrated and described the attaching strip provides for a very muchimproved attachment of the tie to the bag as compared with priorstructures. i

It is to be understood that various changes and modifications may bemade in the structures herein illustrated and described withoutdeparting from the spirit and scope of our invention.

What we claim is:

1. In combination a container having a projecting flap at its open end,an attaching strip tobe secured to the container Wall and to said flap,a metallic tie strip, and a cover for said tie strip, one face of saidmetallic tie strip being adhesively secured to said attaching strip, the

opposite face being secured to the cover strip.

2. In combination an attaching strip to be applied to the outer face ofone wall of a container and projecting beyond the end of the container,said attaching strip'being of a width not greater than the width of thecontainer wall, a covering strip secured to said attaching strip,

a metallic tie strip, said attaching strip and said 'covering stripbeing wrapped about the metallic tie strip so that one face of the tiestrip may be adhesively secured to the attaching strip and the otherface adhesively secured to the covering strip.

3. The method of making closures for containers which comprises applyingan attaching strip to the end of a container with a portion of theattaching strip extending beyond the end of the container, adhesivelysecuring a cover strip to said attaching strip with the cover stripextending beyond the attaching strip and folding the two strips about ametal tie member and adhesively securing the tie member between theprojecting ends-of said strips 4. An article of manufacture comprising ametallic tie strip. a covering strip, and an attaching strip, the latterbeing separate from but secured to the metallic' tie strip and thecovering strip, the metallic tie strip projecting beyond the sides ofthe attaching strip.

5. An article of manufacture comprising a metallic tie strip, a coveringstrip wrapped about the tie strip, an attaching strip separate from butsecured to said covering strip, the tie strip being greater in lengththan the width of the attaching strip so that the tie strip projectsbeyond the sides of the attaching strip.

6. As an article of manufacture, a covered metal tying strip for closinga container, said tying strip including an attaching strip to be appliedto the wall of the container, the width of the attaching strip beingless than the length of the tying strip, the covering for the tyingADOLPH POTDEVIN. ROBERT L. RICHMOND.

